no way i think maybe ceos should be a little more like warren buffett of berkshire hathaway and give no forecast and we'd all be better off for guidance but would have to do it at once and it wouldn't be such a bad idea i always say there's a bull market somewhere i promise to find it right here for you on "mad money. i'm jim cramer see you tomorrow the news with shepard smith starts now what if like aspirin for a headache, there were a pill to treat covid? stand by i'm shepard smith. this is the news on cnbc mask backlash. confusion shifts to anger, after the cdc changes guidelines >> take the masks off our children. >> the impact on schools, across the country. president biden to announce vaccine requirements for federal employees. his new order, to get a shot or submit to weekly testing simone biles pulls out of the individual all around.

the cause and the g.o.a.t.'s decision to shine a big light on her own mental health. >> her being able to to this shows what she wants to do moving forward. >> no crabs, no scallops big-labor problems why our seafood is disappearing from restaurants, and the shellfish making people really sick a deadly shooting in a movie theater. ub eats now delivering flowers. and the uk opening its doors to vaccinated americans. >> live from cnbc, the facts, the truth, "the news with shepard smith. and good evening a live look coming, at the olympic torch burning over tokyo. our prime-time coverage continues, in the next hour, with cycling and archery but all the talk, today, is about who's not in the competition. simone biles, bowing out of the individual all-around. tonight, reaction and support

from some of the biggest names in sports and beyond plus, we'll hear live from a man who worked with simone biles and other top athletes on their mental-health challenges and before tonight's fencing quarter finals, thestory of a gold medalist in this year's games, who almost threw in the towel. but we begin, tonight, with the widespread confusion and backlash, a day after the cdc reversed its mask guidance the agency now telling some fully-vaccinated americans they need to, once again, wear face coverings indoors. the debate heating up across the country, from local-school board meetings, to the halls of congress the capitol's attending physician says house lawmakers now need to mask up, vaccinated or not but that requirement does not apply in the senate. different rules, for different chambers, in the same building today, speaker nancy pelosi insulted the house leader, kevin mccarthy, by calling him a

moron, after he said the decision to bring back masks is not based on science >> leader mccarthy says it's against the science. >> he's such a moron. >> mccarthy fired back, saying d.c. is not a hot spot and accused speaker pelosi of doing this for control one of his members, the republican congressman chip roy took it a step further and protested the new-mask mandate, by forcing a vote to adjourn the house. >> well, which is it vaccines or masks if the vaccines work, or they don't work do the masks works or they don't work i'd like to know which it is you have been infected with the virus. do you have immunity or are they just going to go around poking people saying you must take a vaccine? oh, but sorry, the vaccine doesn't work you must wear a mask. >> well, it works. and it's not complicated more political fallout could come, tomorrow president biden expected to announce his administration will

require federal workers to be vaccinated, or else they'll have to get tested, regularly on the business front, facebook and google just announced they'll mandate vaccines for all workers going into offices google's ceo also pushed back the company's official return to office date, over concerns about covid delta. we have coverage from all angles, tonight. valerie castro on the backlash over the cdc's mask guidance and schools. we'll hear from the former-fda commissioner, dr. scott gottlieb but first, to nbc's peter alexander at the white house on the push for vaccine mandates. >> shep, tomorrow president biden is expected to mandate all civilian federal employees be vaccinated or submit to restrict-covid protocols officials tell nbc news those who do not show proof of vaccination would have to be tested frequently and wear masks. it is a dramatic reversal for the president, who just months ago, said that he did not believe the vaccine should be mandatory. the white house, also, now, ordering mask mandates inside federal buildings even for the

vaccinated in places where the virus's spread is high that applies right here in d.c the pentagon doing the same. republicans have pounced on shifting messaging trading sharp words after the chief doctor on capitol hill announced a mask mandate for the house but not for the senate due to rising covid cases here in washington mccarthy saying it's not based on science pelosi calling mccarthy a moron. president biden wore a mask when he got back to the white house tonight. but earlier in pennsylvania, touting manufacturing, he was maskless the county he was in has a lower-covid rate the cdc guidance does not call for mask wearing there still, this debate and the confusion is creating new challenges for the president, who just weeks ago, declared this the summer of freedom for the vaccinated shep. >> peter, thanks as i reported, the cdc now urging everybody in k through 12 schools to mask up, indoors. vaccinated or not. students, teachers, staff, and

visitors but whether individual schools actually follow that guidance could depend largely on where they are so far, at least nine states have banned school districts from issuing mask mandates you see them here. vermont, south carolina, iowa, arkansas, oklahoma, texas, arizona, georgia, and utah on the debate over masks in schools, here is cnbc's valerie castro >> no way, you are not masking our children >> reporter: the debate is raging all over the country, and parents are making their opinions well known. >> i don't think anyone's thinking logically, anymore. i think they have just let this really just run crazy with these -- with masks. it -- it's over. we don't need it, anymore. >> reporter: districts issued their own policies last school year, and bucks county, pennsylvania, was mask optional. but on tuesday, a protest broke out at a press conference held by parents who say the spread of the delta variant, along with the cdc's new guidance is enough to make this year mask mandatory. >> in another couple of weeks,

it is likely to be even worse. >> reporter: but others say a repeat of masks in the classroom will be detrimental. stafford county, virginia, is considering a full mandate. >> my 8th grader, this past year, went into a deep spiral depression because of virtual learning and because of masks when we went back to school. >> not only did we suffer the deep depression, we suffered severe germophobia i can't even touch him i can't even hug my child. unless he's about to go take a shower >> reporter: in leon county, florida, the district is sticking to masks optional despite opposition from many, including this teacher. >> what are our students' teachers, staff, and community worth? when we look back on this year, and say we did everything we could to keep them safe? or ask why didn't we mask? why didn't we act when we had the chance >> reporter: school officials

find themselves endlessly caught in the controversy >> but when we have colliding forces from the -- the federal government to the state government to the -- the cdc to our local departments of health, we are trying to navigate all of those forces >> reporter: some districts say they are waiting a few more weeks, to decide what their masking policies will be others caution that any decision made now could change with updates to cdc guidance, throughout the school year and economists have cautioned any disruption to schools risks hurting women's return to the work frs since they often take on the brunt of childcare responsibilities there are 1.8 million fewer women in thework frs now than perfect the pandemic started. >> dr. scott gottlieb, now former-fda commissioner, author of the book "uncontrolled spread." and cnbc contributor for which we are thankful. doctor, at least nine states have already banned mask mandates in schools. broadly, are you concerned new cdc mask guidelines will have no impact

>> well, look, i think in terms of mandating that or recommending that people who are vaccinated need to wear masks, again, i think what could be more valuable to people who are vaccinated is just practical guidance on what it means to be vaccinated and what their individual risk is being vaccinated sub -- substantially reduces risk that they have a bad outcome, that they will be hospitalized, or have a severe case of covid. what we are seeing with the delta variant is it is so highly contagious, there are some breakthrough cases where people who are vaccinated are developing mild or asymptomatic infection and probably have the ability to pass on that infection. so if you are vaccinated and you become symptomatic, don't assume that you don't have covid. and if you are caring for young children or people who could be at risk, you should get yourself checked out. and maybe, consider wearing a mask when you are around people who are at risk. so i think, if we gave practical guidance to people who are vaccinated, that would probably be more valuable than trying to reimplement a mandate that people who are vaccinated wear masks. >> that sneeze was not covid, for the record doctor, you said you think we're

further along with this delta variant wave than we realized. if you could elaborate, i'd appreciate it. and -- and given that, are -- are we overdoing this? given that you have said you think we're close to done? >> well, look. i think we're in the thick of it right now. but i think we are not picking up a lot of infections there is probably a lot of infections right now, or ascertainment rate probably is around one in ten. during the height of the epidemic in the winter, when we had very good testing in place, we were picking up probably one in three or one in four infections right now, a lot of people aren't seeking testing and when they do seek testing, they do it at home with antigen-based tests. so if you are vaccinated and you develop a mild cold, you don't think you have covid so you are not getting tested and older individuals who are more likely to become symptomatic, a lot of the infection right now is happening among a younger cohort who are less likely to develop very severe symptoms.

so less likely to think they have covid and seek out testing. but people generally, who are getting tested, are those who get very sick or those who develop tell stale symptoms of covid. so i think the amount of infection we have taking plats in this country is a lot higher and maybe, we are closer to the peak particularly, in some of the southern states. when you look at the south, you look at states like arkansas or missouri, louisiana, the -- the epidemic is still expanding, in those states but the rate of expansion is slowing and that's a sign they may be reaching a peak, in those states. >> so you think we may be on the downslope from this, when? >> probably, in two or three weeks. i think that we were probably about three weeks behind the uk. the uk clearly is on a down slope. they have seen an uptick, in the last day but they have seen a sustained trend over the last week of declining cases. i would expect some of the southern states that really were the epicenter of this epidemic to start rolling over in the next two or three weeks. now, the problem is that this is a big country. and we are going to see the

epidemic sweep across the country in different portions, at different times and so, the northeast and northern states will start to see more delta spread, as the south comes out of this. with the uk, it really revolves around what happens in london. here, in this country, it's going to be much more regionalized now, i don't expect the density of the spread of delta in states like new york or michigan to be what it was in the south we have more vaccine coverage, up there we have had more prior infection. but you will see an uptick in cases, even in states where there is a lot of vaccine coverage probably just not as severe. >> on the main, that's good news doctor, thank you. another quest for gold on hold simone biles, once again, benches herself. new insight into what happened mid-air that caused her to take a break. as she adds her name to the list of athletes prioritizing their mental health. next, a mental-health training expert, who worked with simone biles and others she will join us, live, on the news for other members of team

usa, the fight for top medals continues. highlights from swimming and men's basketball are they finally back on track and the economy withstanding the threat of the delta variant, as the fed chairman, jerome powell, weighs in on inflation not all 5g networks are created equal. it's clear to see. t-mobile is the leader in 5g. t-mobile. america's largest, fastest, most reliable 5g network. limu emu... and doug. so then i said to him, you oughta customize your car insurance with liberty mutual, so you only pay for what you need. oh um, doug can we talk about something other than work, it's the weekend. yeah, yeah. [ squawk ] hot dog or... chicken? [ squawk ]

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wasn't in the right head space the twisters, they call it it's when gymnasts lose their sense of space in mid-air. the twisties look at biles' eyes here right before she lands on the mat during her last vault jump today, she got support from gymnastics great, dominique moceanu. at the 1996 games in atlanta, she had to push through a tibial stress fracture during the team competition, which led her to fall directly on her head during her balance-beam routine she applauded biles for having a say in her own health. a say, she says she never had when she competed. moceanu then wrote, in our sport, we essentially dive into a pool with no water when you lose your ability to find the ground, which appears to be part of biles' decision, the consequences can be catastrophic she made the right decision for the team and herself michael phelps also sending his support. in an interview today, the greatest swimmer of all time said, he knows how biles feels

>> we carry a lot of things, a lot of weight on our shoulders and it's challenging, especially when we have the -- the -- the lights on us, and all these expectations that are being thrown on top of us. >> and other olympians have spoken out as well about their mental health struggles. biles' former teammate aly raisman says she went to therapy after team dr. larry nassar sexually abused her. the basketball star, kevin love, admitted he had several panic attacks during his career. and the tennis star, naomi osaka, said that she needed to take a two-month break from all that attention full olympics coverage, now. mental training expert, robert andrews, on the simone biles' situation. but first, nbc's tom llamas live from the gymnastics arena in tokyo. tom, how is biles doing? >> well, shep, we know she is taking all of this, day by day but she is keeping us guessing just last night, she was actually here in the ariaki gymnastics center cheering on the men in their all-around

final. now, this is a surprise because she is dealing with so much right now. the entire world is focused on her. and yet, she takes the time out to come back here where that incident happened on the vault to cheer on her fellow teammates. tonight, the women's all around final. this is the event she just recently pulled out of and it's one that she won in rio, four years ago. she won the gold medal so she would have been the defending champion here. jade carey from team usa is now replacing her. she will compete tonight, along with suni lee. now, suni lee qualified and she was ranked third so she has a very good shot at a medal tonight. and i got to tell you, shep, i won't be surprised if simone biles is here again, tonight, rooting on her teammates i had a chance to speak to a few of them who told us on that night, the night the vault incident happened, they were shocked. they had noticed something was a little off maybe, a week ago, when they first practiced in this arena. but they said it was sim oens bi simone biles but they say they will support her no matter what she does. whether her olympics here in

tokyo are completely over. or if she is going to take the time, she can regroup, and compete again. it's her choice. they are going to support her, either way but that's the big question right now. what does simone biles do? she is taking her team and team usa is going to give her that time shep. >> let's turn to robert andrews now. mental health training cert, director of the institute of sports performance in houston. right now, robert's working with four olympians on mental-health conditioning and he worked with simone biles for four years, until 2017 robert, can't thank you enough simone reportedly has the twisties, meaning she's lost her sense of where she is, while she's tumbling how common is that and what do you do about it? >> well, first of all, i'm working with athletes from four countries, not four athletes. >> sorry >> um, the twisties and how you correct it it's a -- it's a symptom of the brain being overwhelmed with too much stress, pressure, and anxiety. there is a long list of

stressors that are pushing in on her. and so, what you got to do is do your best to resolve those stressors. and calm the brain and nervous system back down, again. because in essence, the brain is saying it's not safe enough for you to do these incredibly difficult skills and if you do, you're -- you're at serious risk of injuring yourself so she is wise to listen to her brain and her body. >> olympians have always been under so much pressure but this generation has social media. what role does that play in all thf? of this >> 90% of it plus. >> 90% >> people love her and support her. but there is that dark side of it, that we're starting to see come up, now a lot of hate. a lot of rudeness. a lot of cruelty um, unfortunately, that's the world we live in right now so if i was talking to simone, i would tell her to -- to even delete some of these apps from her phone, if that's what she needed to do to distance herself from the dark side of social media. >> not a bad idea, for a lot of us michael phelps has talked about the mental-health challenges after his games.

no more spotlight. no more competition. how can olympians battle that? >> it's a huge process and i have helped a number of them through it over the years. it's not just the limelight and the attention. it's the rigors of day-in-and-day-out training and commitment and being with teammates and competition and pushing yourself to acquire new skills or swim faster. when that structure is gone, it's kind of like who am i now and that loss of identity and connection to that sport is difficult. so i always try to help them find something to channel that passion into and those that are able to do that have a very successful transition >> have you heard from simone? >> i have not. i have heard from her father but not simone. >> well, we are wishing her all the best, as i know you are. robert andrews, thanks so much. for the rest of team usa, the hunt for gold continues. katy ledecky winning gold in the first ever women's 1500 meter

freestyle. her victory came a little more than an hour after she missed a medal in the 200 meter and for the first time in more than a century, great britain wins a relay gold medal in the olympic pool team usa didn't make the podium after star swimmer, caeleb dressel, was excluded from that relay. and u.s. men's basketball finally got their first win in tokyo. today, they rushed iran. almost doubling 'em up 120-66, the final. kevin durant and the gang set to face the czech republic on saturday so here is where the medal count stands right now team usa leading with a total of 31 china's in second, with 27 and that russian olympic committee with 23. while the games are in full swing, covid continues to be a major problem in tokyo in fact, it's growing. officials there say rising infections are pushing hospitals to the brink today, tokyo reported more than 3,000 new cases. that isthe most on any day since the beginning of the pandemic uber eats.

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uber eats brafrmging out into the flower delivery business the app teaming up with pro flowers to start delivery today. it's available in six cities new york, philly, chicago, los angeles, dallas, miami the company reports it is planing to roll out the service nationwide, early next year. and this move comes, after a surge in business for delivery apps during the pandemic a surge, that hasn't slowed at all as businesses re-open. cbc's christina is here. christina. >> well, get your groceries in less than 15 minutes order warm cookies to your door

until 2:00 a.m. now, flowers are in the mix just as shep mentioned. you can order sushi, pet food, delivery fees vary from 50 cents to four bucks if you get something from 7 eleven. prices were the same as in store and i can say this because, even i tried to order some random items today. unfortunately, those orders were replicated and duplicated, many times. and the fees racked up, which is a key source of income for the drivers, the app companies, and the businesses, themselves profit margins on much of these products are thin but an increase in offerings can bring in customers. >> it is not about, like, long-term customer retention i don't think, in individual product sale, they are going to make much profit. >> although non-restaurant delivery accounts for only about 5% of sales of both uber eats and doordash it's only expected to grow. >> every company is growing, which tells you that, either, they are adding more dollars to their checks that they are getting from a user. or they are adding more users to

their system. >> competition is fierce over the last ten months ending in early may, doordash is the most popular app followed by uber eats and then grubhub a growing reliance on delivery services caused by a year of lockdowns has helped spawn an urban industry of rapid delivery and businesses, like uber and doordash believe customers, who want convenience, will keep paying up. and, shep, i brought you a gift because, as i messed up today, i ordered many bottles of this product here and um, yeah there you go. >> well, relief. you never know. >> yep. >> to my team. thank you so much. >> thank you a deal now reached on a multibillion-dollar infrastructure deal. money for roads and bridges and drinking water brand new. a vote in the senate, tonight. will it bring the back and fworfor democracy th to an end a tiktok star shot in a movie

theater. another teenager dead. new tonight, an arrest but police admit there are still a lot of questions. and pfizer pours money into a pill to treat covid. as england welcomes back u.s. travelers. that's next. as we approach the bottom of the hour and the topf othe news on cnbc (struggling vehicle sounds) think premium can't be capable? think again. ♪ (energetic music) ♪ ♪ ♪

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interest rates unchanged and near zero today. the chairman jerome powell saying, the feds' nowhere near considering a rate hike, and inflation will not last. powell adding that the economy continues to strengthen, despite the covid concern. former-president obama teaming up with nba africa to expand the league's presence on the continent. he'll have a minority-ownership stake in the deal and use the money to help fund his foundation's youth and leadership programs there, he says the nba africa league debuted in may. and the iconic campbell's soup can getting a makeover, for the first time in 50 years the new label, on the right here, keeping its famous red and white colors but the logo no longer has that shadow, and the font changed, just a bit seems to be a picture, too the new cans rolling out on store shelves right now. on wall street, the dow down 128. s&p down 1 but the nasdaq up 102.

i'm shepard smith. on cnbc. it's the bottom of the hour. time for the top of the news it's the most expense ichb fighter jet ever built for the u.s. military. but price doesn't equal performance. a congressional committee wants answers from the pentagon. america's restaurants battling a major seafood crisis. why certain items are vanishing from menus, everywhere and the next, big thing in the fight against covid. a covid pill it's the antiviral that would help fight the virus during the early stages of the infection. it's the next, potential breakthrough that could help the united states curb this steadily-increasing number of cases, while relieving stress on hospitals. pharma companies, including pfizer, are betting big money behind this effort cnbc's meg covers science and medicine

hi, meg. >> shep, pfizer today, saying the early data on its drug look promising and it's making a pledge to invest in ramping up manufacturing of the pill. even before knowing whether it works. ceo telling us, he just authorized an investment of a billion dollars in the program >> we are going, full speed, with all in -- for this antiviral. and we are manufacturing we made commitments. so they are providing now raw materials. we are building the equipments hopefully, it will be successful for the world. >> now, pfizer started a pivotal trial of the drug this month and expects to have results potentially to file for emergency-use authorization by the end of the year. it's testing the drug, in combination with another antiviral. both pills, taken twice a day, for five days. the goal keep people with covid from getting so sick, they have to go to the hospital.

now, of course, it's not the only company working on a pill for the disease. others are in development, from drugmakers merck merck has already struck a big-supply agreement with the u.s. government if it's cleared by the fda now, the companies they are also testing the drugs to see if they could prevent covid in people who have been exposed. and beyond being a pill, another potential upside to these drugs is, if they work, they're expected to hold up across different variants of the virus. >> that is great news. meg, thanks. fully-vaccinated americans can, once again, visit england without having to quarantine it starts next week. government officials there made the announcement today it comes just a week after the cdc and the state department told americans to avoid travel to the uk because of rising-covid cases but now, infections there are dropping, fast it's a hopeful sign that the uk's latest surge, fueled by the delta variant, may have passed its peak in london, here is nbc's ali

arouzi. >> it just got a lot easier for u.s. travelers to come to england, as long as they have been double jabbed the government here announced that, as of monday, the second of august, travelers from the united states and the european union will no longer have to quarantine for ten days, upon arrival in the uk, as long as they've had two doses of a vaccine that's been approved by the fda or the european medicines agencies prime minister boris johnson said that he wants u.s. citizens to come to the uk, freely, again, as they did before the pandemic and he wants families to be able to reunite, more easily. so, the rules are now that, if you have had a double vaccine, you can come to the uk as long as you do a pcr test before leaving the united states. and you do a pcr test two days after arrival. if those -- both those tests are negative, your movements won't be restricted. but like all things covid, there

is a caveat. if the situation here gets worse, those rules could change, at a moment's notice shep. >> ali, thanks another major league baseball game postponed after a covid outbreak nats' and phillies will not take the field tonight. the manager says 12 people connected to the team have been put on covid protocols four of them are players including the short stop trey turner, who had to leave last night's game in the first inning after he tested positive for covid. the nat's have faced three outbreaks, this season back in june, the team reported it had reached an 85% vaccination rate police say they arrested a man in a movie theater shooting that left a tiktok star in critical condition and killed an 18-year-old woman in california. cops say the suspect, joseph jimenez, has no-known connection to either of the victims the shooting happened monday night in corona, about 40 miles southeast of los angeles but nobody knew right away

workers say they found the victims when they were cleaning up the theater, after a showing of the -- of the "forever purge. investigators say, they still have a lot to learn. they don't know things, like how long the victims were there, before the workers found them. and whether anybody else was in the theater when it happened and they say they do not know whether the shooter had a motive police say they do know the theater sold six tickets for that showing, and they are looking for any potential witnesses. the suspect now faces murder, attempted murder, and robbery charges. a record-shattering heat wave is about to die escend on e than 100 million americans and potential hurricane-force winds, hail, and tornados, bearing down on another part of the country plus, the f-35 jet the military spent more than a trillion dollars developing this new stealth fighter. now, congress wants ktonow why it's putting pilots in danger? t something different. oh, we can help with that.

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after months of back and forth negotiations on infrastructure, there is actually major movement on capitol hill tonight. just minutes ago, the senate voted to move forward, and start debate on a bipartisan infrastructure package after the white house and a group of senators reached a deal, earlier today. among those voting yes, minority leader mitch mcconnell, who blocked debate just last week. this bipartisan package is the so-called physical infrastructure bill with funding for things, like roads and bridges. a bipartisan group of senators is holding a news conference, right now. these are live pictures, after that vote. president biden, also, pushing to pass a separate, multitrillion-dollar package for human infrastructure with massive spending for things, such as a daycare and other-social programs, with or without republican support 56 years ago, dr. martin luther king, jr., led thousands of people on a march for voting rights from selma to montgomery. today, a new generation of

voting rights activists began their own march in texas the poor people's campaign is marching 27 miles, over four days, to austin, the state capital. they are demanding action on capitol hill, as the republican-controlled states across the nation, including texas, pass voting restrictions. >> 56 years later, we got less voting rights? less voting rights than we had 56 years ago they could do this tomorrow. it's the filibuster. and it could be ended tomorrow >> well, the marchers are calling on the senate to pass the for the people's voting rights bill. but because of that filibuster, that he mentioned, it's essentially doomed to fail without ten republican votes president biden signing a memo, today, to strengthen cybersecurity of u.s. infrastructure, like oil pipelines and electrical grids that memo orders homeland security to develop cybersecurity goals for critical sectors. it, also, creates a voluntary partnership, in which government

gives new tools and tech to companies in critical sectors. and as the white house urges companies to get more involved, we are getting a new report on the high price that corporate america is paying for hacks. our senior washington correspondent, eamon javers, now. >> shep, some fascinating numbers for you tonight. this is the 17th year ibm has done their data breach report. and the findings, this year, are bad news for companies on the receiving end of all these cyberattacks the company found that the average cost of a data breach is up 10%, just from last year. and in this weird pandemic era, that remote work was a big, new driver of vulnerability. remote work was involved in breaches of 17.5% of the companies they looked at those remote breaches took more time to chase down, and cost just over a million dollars more to fix, too. and which industries had the highest costs from all those attacks? well, healthcare took the top spot on the list, where it has usually ranked in this survey.

followed by finance, pharmaceuticals, technology, and energy and here is an interesting statistic on ransomware, which we have all heard so much about, recently the average-total cost, this year, is $4.6 million and that's not including paying the ransom, itself ibm is reminding us here that costs from a ransomware attack to a company include everything, from detection, escalation, and notification, to lost business, and the post-breach response and all of that stuff is getting very expensive, shep. >> seems to be eamon, thank you. house lawmakers calling on the pentagon to investigate why fighter pilots are having breathing problems onboard the f35. the military's new trillion-dollar stealth fighter jet fleet. a subpanel of the house arm services committee is pushing the defense department to examine and fix potential issues with that f-35 and the breathing system onboard. a nasa study found the flow of oxygen to f-35 pilots was

unpredictable and changed, with every single breath. in 2017, the air force grounded f-35s at a base in arizona, after pilots suffered hipoxy-like symptoms already, facing serious scrutiny from lawmakers because of its massive price tag. it is said to be the world's most expensive weapons system, ever the f-35 costs around $36,000 per hour to fly. fancy a little seafood restaurants are coming up short. the reason they are being forced to scale back. and if that news isn't hard enough to stomach, wait until you hear what the heat is doing to shellfish in washington state. backyard swimming pools. you don't have one you can rent one the airbnb-type service that's making a splash. ear. just wear something not too crazy, remember it's a business dinner not a costume party. on a spotty network this is what she heard... just wear something crazy,

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get started today. seafood is disappearing from menus all across the country because, frankly, it's becoming too expensive to serve bloomberg news reports restaurant owners are seeing a massive spike in prices. and that's forcing them to pull -- pull it from their menus. items like scallops and alaskan halibut are largely gone the problem, say the experts, is port congestion and not enough fishermen or truck drivers at the same time, demand for seafood is skyrocketing. the shortage comes, as health officials in washington state are warning everybody, don't eat raw shellfish. they say high temperatures and low tides are likely to blame

for an infection outbreak that sickened dozens of people. that infection is caused by a bacteria found, naturally, in the ocean. but the heat and the low tides can cause it to grow more quickly. and that increases the chance of infection. meteorologists are warning of a possible derecho. a high-impact wind storm that could bring hurricane-strength winds, large and destructive hail, and tornados several thunderstorms, expected to develop in that region tonight. contributing to all of that, a massive-heat dome that stretches across most of the middle of the country. 108 million americans, baking today with the heat index the feels-like temperature topping 100 degrees. 43 million under a heat alert with highs at 10-to-15 degrees above average for this time of year one way to escape all that heat take a dip in someone else's pool you can do that with swimply

it launched last summer, when public pools shut down because of covid leaving millions of americans sweltering with no relief. the platform lets homeowners rent out their pools, like airbnb, for houses so, what happened to swimply this summer? cnbc's diane olick with the latest hey, diana. >> hey, shep we first met the entrepreneurs last year when they launched their new pool rental app nationwide demand was both immediate and immense. this summer, of course, public pools are open, again. but demand for rentals hasn't cooled off at all. in fact, it's gone right off the deep end. >> the amount of hosts on the platform have tripled. >> reporter: 24-year-old swimply co-founder thought his new pool-rental company would help homeowners cover some costs during covid, and give relief to those shut out of public pools but this summer -- >> with restrictions being removed, people are a lot more comfortable hosting.

people are a lot more comfortable not just going with their own family but with other families and other friends >> reporter: after its remarkable debut, swimply raised $10 million from eager investors and is now able to offer owners property insurance that was a game changer. it's now seeing nearly-five times the revenue from a year ago. the number of hosts surged nearly 350%, to 15,000 and the number of users jumped over 400%, to about half a million. were you surprised at how much demand there was for your pool >> i was shocked it was to the point where it didn't matter whether it was a weekday or weekend, the bookings were just coming back to back. >> reporter: she rented her potomac, maryland, pool last year on swimply, mostly to families now, requests are coming in from all over she just had a booking for a photo shoot. and she's rented for parties, baby showers, even wine tastings all of it, netting her tens of thousands of dollars >> some owners are earning over six diktss this year and i just

never saw it being able to be such a powerful source of income um, for a lot of owners. >> reporter: but why would someone with a luxury home, like this, rent out their pool? >> i feed off of their enjoyment and their happiness. >> so you don't do it for the money? >> uh-uh it's a nice, added perk but no >> reporter: now, she also has an artisanal pizza business so you can have poolside pizza if you want probably, a little heavy for the yoga class renting the pool right now. swimply is now expanding to homeowners who want to rent their tennis courts, home music studios, even a turtle farm, whatever that is but you name it, they will rent it shep. >> what happens when you have to go to the bathroom >> good question right? everyone always asks that. about 90% of swimply hosts will offer bathroom access. some of them have some outdoor bathrooms. and swimply will, also, facilitate getting what's called high-end portapotties, if you want so if you need it, you can probably get it. >> diana, thanks.

med school it's hard work so is training for the olympics. leigh kiefer did both. and on cbc tonight, the women's team foil. don't know what that is? you will we have a fencer no. nope. no way. but then helen went from no to know with freestyle libre 14 day, now she knows what activity helps lower her glucose. and can see what works best for her. take the mystery out of your glucose levels, and lower your a1c. now you know. freestyle libre 14 day. now covered by medicare for those who qualify.

tokyo 2020 and minutes away from our prime-time olympics coverage, right here, on cnbc. tonight, double rowing, as the women of team usa look to bring home the gold.

then, the wait is over the bmx racing competition, officially, begins then, later, women's team fencing. the u.s. facing the host nation, japan. competing tonight, team sa fencer lee kiefer. you may remember her she made history on sunday and her reaction was pure gold >> and a gold medal for l lee kiefer and the united states. >> it was pretty amazing the 27-year-old becoming the first american ever to win gold in individual foil and if medaling isn't enough, kiefer is also a med student her husband, also, fences. and both are studying medicine at the university of kentucky. after a tough loss, it -- five years ago in rio, kiefer says she was ready to hang up her foil and then, she took one more lunge. >> i was, actually, planning on retiring after rio >> and kiefer now out of breathing room and that is's it.

she is now out of the olympics as well. 15-9 against lee kiefer who had such high aspirations in rio. >> for the reasons of medical school, and my husband was going to retire. so that was very emotional for us but then, we decided to make one, last push for tokyo and i love the sport, and i love the people so much that just thinking about retiring and these games really put me to tears. i cry easy i was crying just thinking about retiring, earlier. i'm sorry. when i was younger, i hated to lose my fiery temper drove me for the first three years of my career i was -- i was having success with it. but it's only when i started making more friends, my skills

got a little more refined. that i started enjoying the sport more after the beijing olympics, the women's foil team actually retired. suddenly, i rose to the top as a very young, inexperienced fencer and from there, that gave me the opportunity to develop more than a lot of people would have, at my age when i was competing in london, for the first time on the olympic stage, i felt paralyzed walking out onto the strip there were all lights. i could see my family in the crowd. there were so many cameras, everywhere um, and i started fencing and i felt like i was frozen but, also, shaking. two things i didn't want to be but once you get over that shock, you're just -- you're just excited and honored to be there.

making the olympic team is a process. it takes consistency it takes grit. it takes resilience. but i was able to keep on dreaming for tokyo >> she is one touch away from a bout with gold there is a touch for kiefer. and now, it is official. she is moving onto the gold-medal bouts in women's individual foil. >> the magnitude and the emphasis that people put on it helps you just appreciate everything in life that's really beautiful. >> it is the gold medal bout of women's individual foil between 27-year-old lee kiefer of lexington, kentucky. and fencing for the russian olympic committee. >> i don't want to overthink

a lot of times, i focus on my energy i love fencing, as a sport, itself i love the movement. i love being able to be creative and have that physical and mental intensity at practice and in competition >> fourth tie of the bout. and the point goes to kiefer, 13-12. kiefer needs one touch for a gold medal a gold medal for lee kiefer and the united states. >> oh, man a two-time oliympic world champion, herself. i saw you watching that. you were smiling ear to ear. >> yeah.

lee is my girl. >> yeah. they're -- they're really tight. she almost retired after rio, you know stuck with it to win in tokyo. what did that moment mean to her? and how big a breakthrough was that for usa fencing >> yeah. we have such long careers. lee's been since she was 7, like me, i started when i was 9 so it's been 20 years and in those 20 years, you're going back to the drawing board, constantly there's so many iterations of solutioning and trying to make yourself better. make your game better. how to become a better competitor on the strip. there is so many factors involved in fencing. and so, when she came out victorious, it's -- i'm sure she feels so satisfied and grateful because in sport, there is no guarantee you're going to come out with, you know, the crown jewel. very few people come out with the olympic-gold medal that's what everyone is vying for so i'm sure she's so proud of herself because you really have to believe in yourself, too. and that's another process so, i'm so proud of her.

we're all so proud of her and we're just really excited. >> i mean, watching her. it seems like she's got everything she's got a gold medal she is a med student a whole life ahead of her. it's really incredible you know, training for the olympics during the pandemic that's got to be so hard, especially for fencers you know, it's an indoor sport you need gyms and equipment and an opponent. that had to have been a huge challenge. >> yeah, i'm sure. a lot of my teammates in new york where i am based were also really challenged, at that point. luckily, she lives with her husband, who is also a star fencer and they train together. so i'm sure that, like, you know, was -- was a benefit but yeah, i'm sure like not having competitions for a whole year and entering competitions, and then you -- they had one cup and then they were at the olympics so getting back into that, like, intense mode of being -- like beating people and battling people is not easy. >> can't be. >> because this was her -- her moment. >> for sure. and -- and fencing coming up right here on cnbc tonight

women's team foil quarters and semis. what are you going to be watching for >> well, i am going to definitely be watching the usa they're fencing japan. japan is a really young team they're really skillful. like, when she was growing up she was really good but inteam they are on their home turf so i'm sure they're pretty excited. but our team, we have a lot of vets we're really experienced we have a lot of confidence. we have good ranking coming in we meddled at the last three world championships. i was on those teams and at home, now but i will be cheering them on and you'll -- you'll -- you should be looking for a lot of beautiful attacks. foil is so graceful. our team is very powerful. you see a lot of yelling a lot of celebrating a lot of hugging maybe, some crying um, a lot of love. that's really the, like, biggest component in the team event.

just to support your team. >> can't wait to watch it. thank you, so much appreciate your time and if you are just tuning in for rowing or bmx, cycling, hope you will be with us tomorrow for the news on cnbc, 7:00 eastern but it's time to let the games begin. cnbc's prime-time coverage begins, right now. morning in tokyo on the placid waters of tokyo bay, a majestic effort of self-propulsion. rowers powered toward